KE7 piston rings

This topic has 4 replies, 3 voices, and was last updated 3 years, 5 months ago by chuckw.

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September 22, 2022 at 7:07 am #266445
chuckw
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What is the correct part number for these piston rings for KE7? I have seen several different numbers on Marine Engine.
September 22, 2022 at 3:18 pm #266479
Jorzo211
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39 20058

MARK-7, KF-7, KE4-A, MARK 15, WN7A, (60)MERC 200
September 22, 2022 at 3:19 pm #266480
Jorzo211
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chuckw wrote:

What is the correct part number for these piston rings for KE7? I have seen several different numbers on Marine Engine.

39 20058

MARK-7, KF-7, KE4-A, MARK 15, WN7A, (60)MERC 200
September 22, 2022 at 6:09 pm #266485
green-thumbs
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Original part identification system M- 10- 2003

New part number system adopted in early 1950s and non current models had parts renumbered to conform to the new standard.

39- 20058 standard size

39 – 20992 0.015 oversize

Same rings fit KE7, KF7 and KG7

KG4 has different bore so different pistons and rings

Pars Manual has a lot of informating about what parts

different models share and changes in parts within a production run.

Louis
September 22, 2022 at 7:40 pm #266496
chuckw
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Thanks for the info.
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